The word Proglotides is misspelled against Proglottides, which is plural of "Proglottis"
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Proglottides has double "tt" is mispronounced as "t"
Remember double 'TT' in between the strings proglo & ides which should not be misspelled with single 'T'
Wrong Spelling:  proglo-t-ides 
Correct Spelling:  proglo-tt-ides 
Find more incorrect spellings of Proglottides to spell right way.